<pre>Exception (Database Exception) &#039;yii\db\Exception&#039; with message &#039;SQLSTATE[HY000] [1045] Access denied for user &#039;root&#039;@&#039;localhost&#039; (using password: NO)&#039; 

in /www/feehicms/vendor/yiisoft/yii2/db/Connection.php:597

Stack trace:
#0 /www/feehicms/vendor/yiisoft/yii2/db/Connection.php(943): yii\db\Connection-&gt;open()
#1 /www/feehicms/vendor/yiisoft/yii2/db/Connection.php(930): yii\db\Connection-&gt;getMasterPdo()
#2 /www/feehicms/vendor/yiisoft/yii2/db/Command.php(243): yii\db\Connection-&gt;getSlavePdo()
#3 /www/feehicms/vendor/yiisoft/yii2/db/Command.php(1062): yii\db\Command-&gt;prepare(true)
#4 /www/feehicms/vendor/yiisoft/yii2/db/Command.php(386): yii\db\Command-&gt;queryInternal(&#039;fetchAll&#039;, NULL)
#5 /www/feehicms/vendor/yiisoft/yii2/db/Query.php(217): yii\db\Command-&gt;queryAll()
#6 /www/feehicms/vendor/yiisoft/yii2/db/ActiveQuery.php(133): yii\db\Query-&gt;all(NULL)
#7 /www/feehicms/vendor/feehi/cms-core/feehi/components/Feehi.php(47): yii\db\ActiveQuery-&gt;all()
#8 /www/feehicms/vendor/yiisoft/yii2/base/BaseObject.php(108): cms\feehi\components\Feehi-&gt;init()
#9 [internal function]: yii\base\BaseObject-&gt;__construct(Array)
#10 /www/feehicms/vendor/yiisoft/yii2/di/Container.php(375): ReflectionClass-&gt;newInstanceArgs(Array)
#11 /www/feehicms/vendor/yiisoft/yii2/di/Container.php(156): yii\di\Container-&gt;build(&#039;feehi\\component...&#039;, Array, Array)
#12 /www/feehicms/vendor/yiisoft/yii2/BaseYii.php(349): yii\di\Container-&gt;get(&#039;feehi\\component...&#039;, Array, Array)
#13 /www/feehicms/vendor/yiisoft/yii2/di/ServiceLocator.php(137): yii\BaseYii::createObject(Array)
#14 /www/feehicms/vendor/yiisoft/yii2/base/Module.php(724): yii\di\ServiceLocator-&gt;get(&#039;feehi&#039;, true)
#15 /www/feehicms/vendor/yiisoft/yii2/di/ServiceLocator.php(74): yii\base\Module-&gt;get(&#039;feehi&#039;)
#16 /www/feehicms/vendor/feehi/cms-core/feehi/components/Feehi.php(66): yii\di\ServiceLocator-&gt;__get(&#039;feehi&#039;)
#17 /www/feehicms/vendor/feehi/cms-core/feehi/components/Feehi.php(156): cms\feehi\components\Feehi::configInit()
#18 [internal function]: cms\feehi\components\Feehi::backendInit(Object(yii\base\Event))
#19 /www/feehicms/vendor/yiisoft/yii2/base/Component.php(557): call_user_func(Array, Object(yii\base\Event))
#20 /www/feehicms/vendor/yiisoft/yii2/base/Application.php(383): yii\base\Component-&gt;trigger(&#039;beforeRequest&#039;)
#21 /www/feehicms/frontend/web/admin/index-test.php(18): yii\base\Application-&gt;run()
#22 {main}</pre>